Multiple resetting-fuse.



UNITED STATES. -OEIUE JOSEPH W. 'HUEBNER, 0F MELWAUKEE, W'ISCONSIN.A

MULTIPLE nEsE'rTING-FUSE.

Specification of Letters Patent.

Patented Nov. 6, 191 7.

Application filed September 30, 1916. Serial No. 123,016.

To aZZ 'whom t may concern;

Be it known that I; JOSEPH W. HUEBNER, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Multiple Resetting-Fusesg and I do hereby declare the following is a full, clear, and eX- act description thereof.

The present invention relates to new and useful improvements in fuses for electrical circuits and is more particularly directed to the provision of a device including a plurality of fuse elements adapted for selective inclusion in a circuit whereby should a fuse burn out, a fresh fuse may bc immediately substituted.

It is the object of the present invention to provide a multiple fuse device which is mechanicallyY operable to position'selective fuse elements in an electric circuit, more particularly with a view to providing a device which may be controlled from a distance.

The present device finds a particular application in connection with 'street car or other structures wherein a plurality of motors are provided, and to provide an indicatng means for fuse members associated with respective motors, it is further an object' to provide a signal adapted for actuation upon burning out of the fuse of a respective motor. y

It is still further an object of the present invention to provide a. multiple fuse struc ture wherein the fuse elements are so protected and housed that it is impossible to substitute copper strips or other freely conductin elements therefon4 it being however a so an object in this connection to provide `a multiple use member which may be refilled u on breaking a certain seal and disassemb ing the structure.

With the above and other objects and advantages in -view the linvention resides more particularly in the novel combination, ar-V rangement andI formation of parts more particularly hereinafter described and particularly pointed out in the appended claims.

In the drawings. Figure 1 is a vertical sectional view through a multiple fuse constructed in ac cordance with the present invention.`

Figt 2 is a. transverse sectional view taken through the structure immediately above the fuse drum as indicated by the line '2--2 of Fig. l.

Fig. 3 is a transverse sectional view through the intermediate portion of the drum on the line 3 3 of Fig. l.

Referring now more particularly to the accompanying drawings, there is provided a body drum 5, formed of porcelain or other suitable insulating material and provided with a series of spa-ced longitudinal channels 6 in its periphery adapted to receive respective fuse strips y7. Inset in one end of the drum are a. series of contact bars 8 which are mutually insulated and each connected with a fuse strip 7. Fitted over the 4other end of the drum; with its mouth portion extending into the channels is a cap 9 of suitable conducting material and having its mouth portion connected with the fuse strips to form a common contact member therefor. Disposed about the drum is a cylindrical casing l() which has one end terminating adjacent the bars 8 and its other end extended about the cap 9 and terminating Hush with the respective end o the drum, thus completely closing the channels 6, and this casing is secured on the drum by screws 11 passed'therethrough, one of which screws has an apertured head adapted to receive a seal wire l2 passed through a lug 13 on the casing whereby unauthorized tampering with the fuse structure, is prevented.

The fuses are preferably soldered to the bars 8 and the common contact cap 9, and extended' through the channels in spaced relation to the walls thereof, and a packing 14 of asbestos or other suitable material is disposed in the channels about these fuse strips.

The fuse drum is rotatably mounted on a suitable support by means of upper and lower shafts 15 and 16 respectively, the up per shaft beingpermanentlycarried in a bracket 17 and having a squared end loosely fitting into a corresponding socket i8 in that end of the drumcarryi'ng the contact bars 8. The other shaft is detachahly held in a sleeve bracket 19 by a set screw 20 and is adapted to fit in n socket portion 21 ot' the bottom of tltecommon Icontact cup 9, thc afljacent end of the drum being correspondingly socketed to receive this portion. The socket portion 21 and the end of the shaft 16 are provide a proper conthe armature andibrush of a motor. Thus should a respective fuse strip burn ont, the.

drum may be rotated one step to thus place a second fuse-strip in the circuit. r To provide for this step -by step rotation of the drum, the shaft 15 carries a ratchet' cuit 32 including the batteries 33,

connectionsgl and a suitable resistance 35, the switch bgng preferably disposed for convenient operation at a distance from the fuse structure whereby a maximum convenience is aorded in providing a fresh fuse element in the main circuit.

Particularly in connection with street cars or other structures wherein a plurality of motors are employed, it is desirable to provide a signal means for indicating the b o ing of a respective fuse, and to accomplish this, there is provided a circuit 37 connected with the lbracket 19 and the brush structure, 'and including a lamp 38 preferably mounted adjacent the switch 35. Thus when the fuse is intact. the current will flow ther through and the lamp will be short circuited, but upon burning of the fuse the lamp will be lighted.

The fuse drum 5 is removed and replaced by withdrawing the shaft 16 fro'in"i's`hracket 19, and may be disassembled by breaking the seal 12 and withdrawing the casing 10, to

rovidc :for rellingr the fuse, it being' noted, however,A that an unauthorized tampering prevented due to' with the fuse element is the seal 12.

I claim:

1. A multiple fuse comprising a. rotatably. mounted drum, a common contact member at one end thereof, contact bars at the other B8 end of-the drum, fuse strips connecting said common Contact member and the contact hais. a brush for selectively enga ing said contact hais, a easing disposed a out the drinn, a detachable connection between the casing and drum, and a seal associated with said connection.

2. A multiple fuse comprising a cylindrical body provided with a series of longitudinal channels in its periphery and terminating short of the ends of the channel, fuse strips disposed in said channels, a common contact member vconnected with the fuse strips at one end of the body, contact bars connected with the fuse strips at the other 'end of the body and a casing detachably secureAd to I:'.lh lodyugr closing the channels. j

l m ti e comprising' fa drml,v1 longitudinal se strips carried by the drum, a common contact member at one end of the 88 drum connectin the fuse strips and rovided with a et a axiall o the drum, contact bars at the other en of the dl'llm Il: said tirs, a shaft having a, l c 1e inter. o

ent with the last named end of the drum, a detachable shaft engageable .in thesocket ofthe commoncontact member and means for rotatingthe first named shaft in successive steps. Y f8 4. A multiple fuse comprising a rotatably mounted drum,a series 'ofspaced longitu anal channels in the periphery thereof, a common contact member st one 'end 'of the drum, contact o ther end of the' 100 dx-um, fuse str1 nnsar longitudinal channelsand co comma@ contact member andthe contact-balnonsr.v

conducting packin vinthe long'itiidinxklchan-l l nels and surroun' n'g the fuse stri anda 105 rush for selectively: engaging contact' ars. 5. Amultiple fuse comprising a a common contact member m'the form'o a cap at one end thereof, contact bars at the other end of the'dr'um, fuse strips connecting said common contact ,member and contact bars, pivot iembersrrotatably snp' porting the drum, a brush for engaging one of said contact'.- bars, and means carried by 115 one of said pivot members for. rotatn the drum step by step to cause said b to selectively engage said contact'bars;

longitudinal fusestrips carried by the drum a common contact member. at one end of the drum connecting the fuse strips, contact bars at the other end of the drum, a brush selcctiiely en geable with said bars, ashaft havinginterlzkin en gement with 12o the last named end of e darum, a shaft enga geable centrally with said common contact member, and means for rotating the drum in successive steps, ysaid means conhave hereunto set my hand at Milwaukee sistlng of a ratchet wheel 'formed on the ln'the county of Milwaukee and State o llv upper end of the Shaft engaging the upper Viiscoiisln, in the presence of two witnesses.

end of the drum a paw] adapted to envaffe T Y P T 5 the teeth of the7 ratchet Wheel, and mlaizis JOSEPH v HD'LBA ER' for causing the pawl to rotate the ratchet Witnesses:

wheel, substantially s described. FRANK S. RATCLIFFE,

In testimony that I claim the foregoing M. E. DOWNEY. 

